Describe a spider die. What adjustments are typical and how are they made?
What will be an ideal response?
Spider dies are used to make hallow parts, such as tubes and pipes. The inside diameter of the die decreases gradually and smoothly from the inlet of the die to the land. The land is the final output zone and in this zone the inside diameter of the die is constant. The mandrel inside the die
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Ten moles of a gas are cooled at a constant pressure of 20 bar. The initial temperature is 400 K and the final temperature is 300 K. The gas is known to follow the equation of state: V = RT/P + aP2, where a=0.01 L/bar2mol.
A) Prove that (dU/dT)P is equal to CP - P(dV/dT)P. You may use this equality in solving other test problems even if you are unable to prove it. B) Find ?U for the gas in this process. C) Find ?S for the gas in this process. The ACTUAL heat capacity for the gas at the pressure P=20 bar is constant and equal to CP=75 J/mol-K.
A P0102 DTC is being discussed. Technician A says that a sensor circuit shorted-to-ground can be the cause. Technician B says that an open sensor voltage supply circuit could be the cause. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
What is industrial design?
What will be an ideal response?
The thickness of the copper on a printed circuit board is designated in ____.
A. grams B. millimeters C. ounces D. centimeters